Clare Holt, who plays Rebekeh, shared a picture of herself with Kelly on Twitter, with the message: "Special visitor on set today! So great to meet you @Kelly_Clarkson :)"

There is no word about whether or not Kelly — or Gabby, for that matter — will make a guest appearance on the show (Gabby hinted in her Tweet that she'd be open to the possibility), but we would welcome these two girls pretty much anywhere!